| Southern Indiana Gas and Electric Company, Inc. | environmental violation | 2003 | EPA | $33,100,000 |
| CenterPoint Energy Services, Inc. | price-fixing or anti-competitive practices | 2019 | private lawsuit-federal | $14,750,000 |
| CenterPoint Energy | consumer protection violation | 2006 | MN-AG | $13,500,000 |
| CenterPoint Energy Resources Corp. | consumer protection violation | 2021 | AR-AG | $10,400,000 |
| ProLiance Energy, LLC | energy market violation | 2009 | FERC | $3,195,959 |
| Indiana Gas Company, Inc. - Vectren | utility safety violation | 2021 | IN-URC | $894,000 |
| SIGECO | environmental violation | 2003 | EPA | (*)Penalty amounts marked by an asterisk are ones announced by more than one agency. Parent penalty totals are adjusted to avoid double-counting. $600,000 |
| Indiana Gas Company, Inc. - Vectren | utility safety violation | 2020 | IN-URC | $584,000 |
| CenterPoint Energy Arkla | utility safety violation | 2003 | AR-PSC | $250,000 |
| Centerpoint Energy Houston Electric, LLC | consumer protection violation | 2020 | TX-PUC | $250,000 |
| CenterPoint Energy Houston Electric, LLC | utility service violation | 2008 | TX-PUC | $178,750 |
| Indiana Gas Company, Inc. d/b/a CenterPoint Energy Indiana North | utility safety violation | 2021 | IN-URC | $150,000 |
| Centerpoint Energy Houston Electric, LLC | utility service violation | 2010 | TX-PUC | $142,500 |
| CenterPoint Energy | labor relations violation | 2006 | NLRB | $125,000 |
| Vectren North | utility safety violation | 2012 | IN-URC | $100,000 |
| Southern Indiana Gas and Electric Company | environmental violation | 2022 | IN-ENV | $99,000 |
| CenterPoint Energy Houston Electric, LLC | utility service violation | 2010 | TX-PUC | $84,000 |
| Indiana Gas Company, Inc. - Vectren | utility safety violation | 2013 | IN-URC | $75,000 |
| MILLER PIPELINE, LLC | utility safety violation | 2011 | VA-SCC | $70,000 |
| Centerpoint | consumer protection violation | 2016 | TX-PUC | $60,000 |
| Centerpoint Energy Houston Electric, LLC | utility service violation | 2005 | TX-PUC | $58,000 |
| Southern Indiana Gas and Electric Co. | utility safety violation | 2021 | IN-URC | $50,000 |
| Indiana Gas Company, Inc. - Vectren | utility safety violation | 2021 | IN-URC | $50,000 |
| Vectren Energy Delivery Ohio | utility safety violation | 2005 | OH-PUC | $50,000 |
| Centerpoint Energy | utility service violation | 2018 | TX-PUC | $40,000 |
| CENTERPOINT ENERGY GAS TRANSMISSION, LLC | workplace safety or health violation | 2012 | OSHA | $35,000 |
| CENTERPOINT | utility service violation | 2016 | TX-PUC | $27,000 |
| CENTERPOINT ENERGY, INC. | workplace safety or health violation | 2020 | OSHA | $26,788 |
| WASKOM GAS PROCESSING COMPANY | workplace safety or health violation | 2013 | OSHA | $26,000 |
| VECTREN CORP - SIGECO A B BROWN GEN STA | environmental violation | 2016 | IN-ENV | $24,150 |
| Vectren Corp. | environmental violation | 2021 | IN-ENV | $23,000 |
| CenterPoint | utility service violation | 2017 | TX-PUC | $23,000 |
| CENTERPOINT ENERGY ENTEX | workplace safety or health violation | 2021 | OSHA | $19,114 |
| VECTREN ENERGY DELIVERY OF OHIO | environmental violation | 2003 | PHMSA | $15,000 |
| Energy Systems Group LLC | wage and hour violation | 2010 | WHD | $14,616 |
| INDIANA GAS COMPANY, INC D/B/A VECTREN ENERGY DELIVERY OF INDIANA, INC. | labor relations violation | 2010 | NLRB | $14,000 |
| Centerpoint Energy Entex | environmental violation | 2017 | TX-RRC | $12,500 |
| Centerpoint Energy Entex | environmental violation | 2016 | TX-RRC | $12,500 |
| CenterPoint Energy, Inc. | labor relations violation | 2010 | NLRB | $12,000 |
| VECTREN CORPORATION | workplace safety or health violation | 2020 | OSHA | $11,550 |
| VECTREN CORP F B CULLEY GENERATING STA | environmental violation | 2005 | IN-ENV | $11,000 |
| Centerpoint | utility service violation | 2014 | TX-PUC | $11,000 |
| CENTERPOINT ENERGY | workplace safety or health violation | 2013 | OSHA | $10,740 |
| VECTREN CORP - SIGECO A B BROWN GEN STA | environmental violation | 2017 | IN-ENV | $10,200 |
| Centerpoint Energy | telecommunications violation | 2014 | FCC | $10,000 |
| CenterPoint Energy Resources Corp. | environmental violation | 2006 | TX-ENV | $10,000 |
| VECTREN CORPORATION | workplace safety or health violation | 2006 | OSHA | $10,000 |
| CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC | workplace safety or health violation | 2016 | OSHA | $9,353 |
| MILLER PIPELINE LLC | workplace safety or health violation | 2021 | OSHA | $9,000 |
| MILLER PIPELINE | workplace safety or health violation | 2022 | OSHA | $8,288 |
| CENTERPOINT | utility service violation | 2015 | TX-PUC | $8,000 |
| CENTERPOINT ENERGY | workplace safety or health violation | 2013 | OSHA | $8,000 |
| Centerpoint Energy Arkansas Ga | utility safety violation | 2010 | AR-PSC | $7,500 |
| CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC | workplace safety or health violation | 2016 | OSHA | $7,483 |
| Waskom Gas Processing Company | railroad safety violation | 2014 | FRA | $7,300 |
| CENTERPOINT ENERGY RESOURCES CORP | workplace safety or health violation | 2018 | OSHA | $7,000 |
| CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC | workplace safety or health violation | 2022 | OSHA | $6,526 |
| VECTREN CORP F B CULLEY GENERATING STA | environmental violation | 2016 | IN-ENV | $6,250 |
| CenterPoint Energy | labor relations violation | 2009 | NLRB | $6,150 |
| Centerpoint Energy | utility service violation | 2012 | TX-PUC | $6,000 |
| CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC. | workplace safety or health violation | 2010 | OSHA | $6,000 |
| Centerpoint Energy | environmental violation | 2019 | TX-RRC | $5,500 |
| Waskom Gas Processing Company | railroad safety violation | 2015 | FRA | $5,100 |
| MILLER PIPELINE, LLC | utility safety violation | 2010 | VA-SCC | $5,000 |
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